Skip to content
View Timex19's full-sized avatar
💻
I love trying out new things...
💻
I love trying out new things...

Block or report Timex19

Block user

Prevent this user from interacting with your repositories and sending you notifications. Learn more about blocking users.

You must be logged in to block users.

Content in all repositories owned by your account will be closed.
Maximum 250 characters. Please don’t include any personal information such as legal names or email addresses. Markdown is supported. This note will only be visible to you.
Report abuse

Contact GitHub support about this user’s behavior. Learn more about reporting abuse.

Report abuse
Timex19/README.md

Ojo Timilehin Joseph — Senior Software Engineer. Backend, mobile and cloud. Based in Nigeria, open to remote and international opportunities.

Ojo Timilehin Joseph

Reliable systems. Thoughtful experiences. Software with purpose.

Connect on LinkedIn Email Joseph Explore my repositories

About   /   Expertise   /   Technology   /   Projects   /   Connect

About me

I'm a Senior Software Engineer with 6+ years of experience building web applications, cross-platform mobile products, and dependable backend services. My core stack is TypeScript, Node.js, React, and React Native, with cloud experience across AWS, Microsoft Azure, and Google Cloud.

My work spans healthcare, payments, subscriptions, and music applications. With a background in Business Administration, I connect engineering decisions to user needs and business outcomes, from the first interface to deployment and ongoing support.

6+ years of experience; 30% application performance improvement; 25%+ faster API responses; applications serving 5,000+ users.

Impact in detail
  • Improved application performance by 30% through backend optimization.
  • Reduced API response times by 25%+.
  • Built applications serving 5,000+ users.
  • Designed scalable APIs handling 10,000+ requests.

Engineering expertise

Engineering expertise — From product requirements to dependable production systems

Backend & architecture

REST APIs, modular services, background jobs, webhook processing, caching, and database optimization.

Web & mobile products

Responsive React applications, React Native and Expo, accessible interfaces, state management, and complete product flows.

Cloud & delivery

Containerized applications, cloud deployment, automated delivery, secrets management, and release validation.

Reliability & security

Authentication, role-based access, input validation, payment verification, idempotency, retries, and observability.

Technology & tools

Technology and toolkit — Tools across the full product lifecycle

Languages & foundations

TypeScript JavaScript Python C HTML5 CSS3 Shell scripting Git GitHub

Frontend & mobile

React React Native Expo Expo Router React Navigation Vite Tailwind CSS NativeWind Radix UI Zustand TanStack Query React Hook Form Zod i18next Reanimated Gesture Handler

Backend & asynchronous systems

Node.js Koa REST APIs Firebase Admin SDK Firebase Functions BullMQ node-cron Webhooks

Databases & storage

MongoDB Mongoose PostgreSQL MySQL Cloud Firestore Redis Firebase Storage Google Cloud Storage

Cloud, infrastructure & delivery

AWS Microsoft Azure Google Cloud Cloud Run Firebase Hosting Cloud Build Docker Docker Compose GitHub Actions Expo EAS Vercel Netlify Heroku

Payments & communication

Paystack Stripe RevenueCat SendGrid OneSignal Daily WebRTC

AI & content

OpenAI API Sanity

Testing, quality & observability

Jest Vitest React Testing Library React Native Testing Library Playwright Maestro Supertest ESLint Prettier Sentry Firebase Analytics

Selected work

Selected work — Healthcare platforms, music experiences and systems foundations

MyCyberClinics

MyCyberClinics — Healthcare platform connecting patients, providers and care operations. Telehealth, payments and role-based access.

  • Patient experience: Onboarding, appointment booking, consultations, and health records across web and mobile.
  • Platform services: Payments, subscriptions, transactional notifications, and administrative operations.
  • Reliability: Payment verification, background reconciliation, access control, and backend performance improvements.

React Native Expo Koa MongoDB Redis Firebase Google Cloud Paystack

ShedTracks

ShedTracks — Music practice and playback across web and mobile. Audio, metronome and subscription experiences.

  • Playback experience: Responsive player interfaces, accessible controls, and mobile tempo adjustments.
  • Mobile reliability: Work on the iOS background audio lifecycle and playback continuity.
  • Commerce: Catalog browsing, store, subscription, and payment workflows with focused regression testing.

React React Native TypeScript Vite Radix UI Firebase Stripe RevenueCat

Explore my systems and web foundations
Project Focus Technology
System Engineering & DevOps System engineering coursework and command-line tooling Shell
Simple Shell A command-line interpreter C
Responsive Restaurant Website Responsive frontend development HTML, CSS, JavaScript

Engineering approach

How I engineer — Clear decisions, maintainable code and measurable outcomes

Understand Build Validate Deliver
Connect requirements to user needs and business outcomes. Use clear boundaries, strong typing, and established patterns. Test behavior, measure performance, and plan recovery paths. Consider deployment, monitoring, and ongoing support.
GitHub activity

Timex19's public GitHub statistics

Public GitHub activity represents part of my work; professional projects also include private repositories.

Let's connect

Let's build something useful — Open to remote and international backend, full-stack, mobile and cloud roles and collaborations

Open to remote and international roles, meaningful products, and engineering collaborations.

Let's talk on LinkedIn Email joseph@mycyberclinics.com

Popular repositories Loading

  1. Google_Meet-Clone Google_Meet-Clone Public

    JavaScript 3 2

  2. alx-system_engineering-devops alx-system_engineering-devops Public

    ⚙️ System Engineering and Devops training module

    Shell 2 2

  3. Timex19 Timex19 Public

    Config files for my GitHub profile.

    HTML 1

  4. simple_shell simple_shell Public

    Command-line interpreter implemented with the idea of the original shell for Unix operating system (Created by Ken Thompson)

    C 1 3

  5. Restaurant_Website Restaurant_Website Public

    Complete responsive restaurant website using HTML, CSS, & JAVASCRIPT 🍕🍔🌭🍗😋.

    HTML 1 1

  6. App-Landing_Page_Website App-Landing_Page_Website Public

    Simple landing app website template made with HTML, CSS, & JavaScript. 📱💻🖥🌐✨✨

    CSS 1